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Merge tag 'pstore-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
[linux.git] / drivers / media / platform / vsp1 / vsp1_entity.h
1 /*
2  * vsp1_entity.h  --  R-Car VSP1 Base Entity
3  *
4  * Copyright (C) 2013-2014 Renesas Electronics Corporation
5  *
6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  */
13 #ifndef __VSP1_ENTITY_H__
14 #define __VSP1_ENTITY_H__
15
16 #include <linux/list.h>
17 #include <linux/spinlock.h>
18
19 #include <media/v4l2-subdev.h>
20
21 struct vsp1_device;
22 struct vsp1_dl_list;
23 struct vsp1_pipeline;
24
25 enum vsp1_entity_type {
26         VSP1_ENTITY_BRU,
27         VSP1_ENTITY_HSI,
28         VSP1_ENTITY_HST,
29         VSP1_ENTITY_LIF,
30         VSP1_ENTITY_LUT,
31         VSP1_ENTITY_RPF,
32         VSP1_ENTITY_SRU,
33         VSP1_ENTITY_UDS,
34         VSP1_ENTITY_WPF,
35 };
36
37 #define VSP1_ENTITY_MAX_INPUTS          5       /* For the BRU */
38
39 /*
40  * struct vsp1_route - Entity routing configuration
41  * @type: Entity type this routing entry is associated with
42  * @index: Entity index this routing entry is associated with
43  * @reg: Output routing configuration register
44  * @inputs: Target node value for each input
45  *
46  * Each $vsp1_route entry describes routing configuration for the entity
47  * specified by the entry's @type and @index. @reg indicates the register that
48  * holds output routing configuration for the entity, and the @inputs array
49  * store the target node value for each input of the entity.
50  */
51 struct vsp1_route {
52         enum vsp1_entity_type type;
53         unsigned int index;
54         unsigned int reg;
55         unsigned int inputs[VSP1_ENTITY_MAX_INPUTS];
56 };
57
58 /**
59  * struct vsp1_entity_operations - Entity operations
60  * @destroy:    Destroy the entity.
61  * @set_memory: Setup memory buffer access. This operation applies the settings
62  *              stored in the rwpf mem field to the display list. Valid for RPF
63  *              and WPF only.
64  * @configure:  Setup the hardware based on the entity state (pipeline, formats,
65  *              selection rectangles, ...)
66  */
67 struct vsp1_entity_operations {
68         void (*destroy)(struct vsp1_entity *);
69         void (*set_memory)(struct vsp1_entity *, struct vsp1_dl_list *dl);
70         void (*configure)(struct vsp1_entity *, struct vsp1_pipeline *,
71                           struct vsp1_dl_list *);
72 };
73
74 struct vsp1_entity {
75         struct vsp1_device *vsp1;
76
77         const struct vsp1_entity_operations *ops;
78
79         enum vsp1_entity_type type;
80         unsigned int index;
81         const struct vsp1_route *route;
82
83         struct list_head list_dev;
84         struct list_head list_pipe;
85
86         struct media_pad *pads;
87         unsigned int source_pad;
88
89         struct media_entity *sink;
90         unsigned int sink_pad;
91
92         struct v4l2_subdev subdev;
93         struct v4l2_subdev_pad_config *config;
94 };
95
96 static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
97 {
98         return container_of(subdev, struct vsp1_entity, subdev);
99 }
100
101 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
102                      const char *name, unsigned int num_pads,
103                      const struct v4l2_subdev_ops *ops);
104 void vsp1_entity_destroy(struct vsp1_entity *entity);
105
106 extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
107
108 int vsp1_entity_link_setup(struct media_entity *entity,
109                            const struct media_pad *local,
110                            const struct media_pad *remote, u32 flags);
111
112 struct v4l2_subdev_pad_config *
113 vsp1_entity_get_pad_config(struct vsp1_entity *entity,
114                            struct v4l2_subdev_pad_config *cfg,
115                            enum v4l2_subdev_format_whence which);
116 struct v4l2_mbus_framefmt *
117 vsp1_entity_get_pad_format(struct vsp1_entity *entity,
118                            struct v4l2_subdev_pad_config *cfg,
119                            unsigned int pad);
120 struct v4l2_rect *
121 vsp1_entity_get_pad_compose(struct vsp1_entity *entity,
122                             struct v4l2_subdev_pad_config *cfg,
123                             unsigned int pad);
124 int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
125                          struct v4l2_subdev_pad_config *cfg);
126
127 void vsp1_entity_route_setup(struct vsp1_entity *source,
128                              struct vsp1_dl_list *dl);
129
130 int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
131                                struct v4l2_subdev_pad_config *cfg,
132                                struct v4l2_subdev_format *fmt);
133 int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
134                                struct v4l2_subdev_pad_config *cfg,
135                                struct v4l2_subdev_mbus_code_enum *code,
136                                const unsigned int *codes, unsigned int ncodes);
137 int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
138                                 struct v4l2_subdev_pad_config *cfg,
139                                 struct v4l2_subdev_frame_size_enum *fse,
140                                 unsigned int min_w, unsigned int min_h,
141                                 unsigned int max_w, unsigned int max_h);
142
143 #endif /* __VSP1_ENTITY_H__ */